Prince: Agnostic & Free-thinker

He found no different between the words, Agnostic & Freethinker, rather, they both believe in the existence of God, heaven & hell. The meaning as quoted from Dictionary is as below:-

Agnostic - One who believes that there can be no proof of the existence of God but does not deny the possibility that God exists. An agnostic does not deny the existence of God and heaven, for example, but rather holds that one cannot know for certain if they exist or not. The term agnostic was fittingly coined by the 19th-century British scientist Thomas H. Huxley, who believed that only material phenomena were objects of exact knowledge. He made up the word from the prefix a-, meaning “without, not,” as in amoral, and the noun Gnostic. Gnostic is related to the Greek word gn½sis, “knowledge,” which was used by early Christian writers to mean “higher, esoteric knowledge of spiritual things”; hence, Gnostic referred to those with such knowledge. In coining the term agnostic, Huxley was considering as “Gnostics” a group of his fellow intellectuals—“ists,” as he called them—who had eagerly embraced various doctrines or theories that explained the world to their satisfaction. Because he was a “man without a rag of a label to cover himself with,” Huxley coined the term agnostic for himself, its first published use being in 1870.

Freethinker - One who has rejected authority and dogma, especially in religious thinking in favor of rational inquiry & speculation